[tahoe-dev] Object Health

[Shawn Willden]

Not if they somehow managed to get 20 shares deployed... I should probably
break down and go look at the code to figure out how this works, but
instead I'll wait and let someone with a clue comment.

On Wed, Jul 11, 2012 at 2:10 PM, Brad Rupp <bradrupp at gmail.com> wrote:

> The majority of the objects are healthy:
>
>
> 11827 objects checked, 11772 healthy, 55 unhealthy
>
> If what you were saying is true, wouldn't all 11,827 objects be unhealthy?
>
> Brad
>
>
> On 7/11/2012 2:07 PM, Shawn Willden wrote:
>
>> I'm not sure how this interacts with the change from shares-of-happiness
>> to servers-of-happiness.  Your files have shares on enough servers to be
>> happy, but they don't have 20 shares, so they're not "healthy".  If the
>> repair process sticks with allocating one share per server, they'll
>> never be healthy, right?
>>
>> On Wed, Jul 11, 2012 at 1:16 PM, Brad Rupp <bradrupp at gmail.com
>> <mailto:bradrupp at gmail.com>> wrote:
>>
>>     K=11
>>     H=16
>>     N=20
>>
>>
>>     On 7/11/2012 12:45 PM, Shawn Willden wrote:
>>
>>         What are your encoding parameters?  It looks like K=11, N=20,
>>         what is
>>         your happiness setting?
>>
>>         On Wed, Jul 11, 2012 at 9:57 AM, Brad Rupp <bradrupp at gmail.com
>>         <mailto:bradrupp at gmail.com>
>>         <mailto:bradrupp at gmail.com <mailto:bradrupp at gmail.com>>> wrote:
>>
>>
>>              On 7/9/2012 10:47 AM, Greg Troxel wrote:
>>
>>                  To measure without changing, I would do deep-check (with
>>                  --add-lease)
>>                  without using --repair and see if you get stable output.
>>
>>
>>              I did this yesterday using the command:
>>
>>              tahoe deep-check --add-lease --verbose my-alias
>>
>>              Run #1 reported:
>>
>>              done: 11827 objects checked, 11796 healthy, 31 unhealthy
>>
>>              Run #2 reported:
>>
>>              done: 11827 objects checked, 11772 healthy, 55 unhealthy
>>
>>              In the verbose output from the command, I see the following
>>         that may
>>              be of interest:
>>
>>              'snapshot/hera/mysql/bugs/bug_**____status.frm': Healthy
>>              'snapshot/hera/mysql/bugs/____**bugs.MYD': Not Healthy: 19
>>         shares (enc
>>              11-of-20)
>>              'snapshot/hera/mysql/bugs/____**bugs.MYI': Healthy
>>              'snapshot/hera/mysql/bugs/____**bugs.frm': Healthy
>>              'snapshot/hera/mysql/bugs/____**bugs_activity.MYD': Not
>>
>>         Healthy: 19
>>              shares (enc 11-of-20)
>>              'snapshot/hera/mysql/bugs/____**bugs_activity.MYI': Not
>>
>>         Healthy: 19
>>              shares (enc 11-of-20)
>>              'snapshot/hera/mysql/bugs/____**bugs_activity.frm': Healthy
>>              'snapshot/hera/mysql/bugs/bz__**___schema.MYD': Healthy
>>              'snapshot/hera/mysql/bugs/bz__**___schema.MYI': Healthy
>>              'snapshot/hera/mysql/bugs/bz__**___schema.frm': Healthy
>>              'snapshot/hera/mysql/bugs/____**category_group_map.MYD':
>>         Healthy (LIT)
>>              'snapshot/hera/mysql/bugs/____**category_group_map.MYI':
>> Healthy
>>              'snapshot/hera/mysql/bugs/____**category_group_map.frm':
>> Healthy
>>              'snapshot/hera/mysql/bugs/cc._**___MYD': Not Healthy: 19
>>         shares (enc
>>              11-of-20)
>>              'snapshot/hera/mysql/bugs/cc._**___MYI': Not Healthy: 19
>>         shares (enc
>>              11-of-20)
>>              'snapshot/hera/mysql/bugs/cc._**___frm': Healthy
>>
>>
>>              Regards,
>>
>>              Brad
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>> >
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>> **>__>
>>
>>
>>
>>
>>         --
>>         Shawn
>>
>>
>>
>>
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>>
>>
>>
>> --
>> Shawn
>>
>>
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-- 
Shawn
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